Noun

(en noun)

A person with extensive knowledge or ability in a given subject.

* If an expert''' says it can't be done, get another '''expert . -

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= Welcome to the plastisphere , passage=Plastics are energy-rich substances, which is why many of them burn so readily. Any organism that could unlock and use that energy would do well in the Anthropocene. Terrestrial bacteria and fungi which can manage this trick are already familiar to experts in the field.}}

(chess) A player ranking just below master.

Noun

(es)

(rfc-sense) A real or mythical person of great bravery who carries out extraordinary deeds.

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A role model.

The main protagonist in a work of fiction.

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A large sandwich made from meats and cheeses; a hero sandwich.

(food styling, chiefly, attributive) The product chosen from several candidates to be photographed.

* 2003 , Solomon H. Katz, William Woys Weaver, Encyclopedia of Food and Culture

The preparation of the hero food involves any number of specialized techniques food stylists have developed to deal with the demands of photographing food.

* 2008 , Linda Bellingham, Jean Ann Bybee, Brad G. Rogers, Food Styling for Photographers (page 8)

Protect the hero food. Whether the hero items are on a table in the studio or in the refrigerator, freezer, etc., be sure they are identified as hero items and not for consumption.

* 2008 , David Random, Defying Gravity (page 24)

The food stylists this day had spent inordinate amounts of time preparing the hero product for a close-up scene.